Condensation products of betainelike constitution and a process of preparing them



30 named ethers, for instance dodecylchloromethylof alcohol, 32 parts of octadecyl-chloromethyl 30 Patented Oct. 15, 1940 t CONDENSATION PRODUCTS OF BETAINE- LIKE CONSTITUTION AND A PROCESS OF PREPARING THEM Ludwig Orthner and Gerhard Balle', Frankforton-the-Main, Johann Rosenbach, Wiesbaden, and Kurt Bonstedt, Franktort-on-the-Main, Germany, assignors, by mesne assignments, to General Aniline & Film Corporation, New York,

N, Y., a corporation of Delaware No Drawing. Application March 14, 1939, Serial No. 261,760. In Germany March 1a, 1938 6 Claims. (Cl. 260-501) The present invention relates to condensation- The new compounds, corresponding to the genproducts of betainelike constitution and to at oral formula:

process of preparing them.

We have found that valuable condensation x H products of betainelike constitution may be ob- ",7 5

tained by causing a compound of the general for- (CHRa),.C0O-

mule! 2 wherein R Stands for a wherein R stands for a hydrocarbon radical with hydrocarbon radical with at least4 carbon atoms t 1 4 carbon atoms which may be t Which y be n rr p y h o m f rupted by hetero-atoms, for instance 0 or S; X

sta c 0 0 X Stands for 0 S, and Hal stands for oxygen or sulfur; R1 and R2 stand for 1 st nd for a halo n atom, to react W an hydrocarbon radicals, or R1 and R2 together form alphaor gamma-aminooar xylic cid d sll with the nitrogen atom of the formula a heterou ed t t i r n, in the presence of an a cyclic ring system free from double bonds; R3 ind agent, f r nce n a ka met l h stands for hydrogen or an aliphatic hydrocarbon droxide or carbonate or with an ester of such i Y t d for 1 or 3, in t cases, 15 aminocalboxyllc a d saponifying the reacsolids which are soluble in water, especially on tion product obta n d y means of the amineheating. Owing to their high capillary action, carboxylic acid esters. they may be used, primarily in the textile indus- S Compounds ha an ether-like Structure try, as wetting, cleansing, dispersing and scroopw h m y be s d n t p ss of the pres t ing agents. The products may also be used in 20 nve there y e named a x mp es; admixture with other textile adjuvants, such as h r h e h r, d decy ohloromethylethe soap, alcohol sulfonates, fatty acid condensation e 0 t d c l r y e d decy moproducts, alkylaryl-sulfonic acids and the like. e y t e C y y l yl hl o ethyl ther, The following examples serve to illustrate the the chloremethylethers 0f o e y pheno1m0h0- invention but they are not intended to limit it 25 glycolether, dodecyldiglycolether, dodecyl-hythe eto; the parts are by weight; droxyethylsulfide, montana alcohol, abietinol and (1) 12 parts 01 a caustic soda solution of 40 dihydroabietinol. There may further be used B. are added to a feebly warmed solution of 11 the thioethers corresponding to the aboveparts of dimethylamino-acetic acid in 200 parts sulfide, octadecylchloromethylsulfide. ether being then immediately added to the mix- Suitable amino-carboxylic acids containing ture. The whole is allowed to stand for a short tertiary bound nitrogen or esters of such acids time, the sodium chloride formed is removed by for instance! d y et e ac d, 11 filtering and the alcoholic filtrate is concentrated butylamine-acetie acid, piperidine-aeetie acid. by evaporating, under reduced pressure, at C. 35 alphei-dimethylamino-pl'epionic aeidr dlmethyl- The smeary residue is made into a paste with cold amino-acetic acid methyl ester, dibutylaminoacetone and the body insoluble in acetone is acetic acid ethyl ester gamma'diethylaminobu' tered with suction. The latter is then recrystaltyric acid methyl ester, piperidino-acetic acid med from cyclohexane The new compound is a methyl f morPholmmztcetic acld ethyl ester" solid, colorless body which dissolves in hot water 40 m im' f methyl to a clear solution. The product has the followter gamma-piperidino-valeric acid methyl ester. mg constitution. The reaction is suitably carried out by adding the compound corresponding with the above-indicated formula to the ester of an amino-caronHe1.0.onri om.o00- 45 boxylic acid and subsequently saponifying the product, for instance by treating it with an agent (2) 40 parts of dimethylamino-acetic acid of alkaline action such as caustic soda solution, methyl est r r dd While Stirring. at sodium carbonate or magnesium oxide, t 1 ,1- to a solution of 100 parts of octadecyl-chloro- 5Q ogen t being, at the same time, e1iminate methyl ether in 500 parts of methylene chloride. It is, however, also possible to cause the amino- The q a rn y m i m lt o a n d af r carboxylic acid itself to react with the halogendistilling the methylene chloride is dissolved in methyl compound, in the presence of an acid- 1400 parts of alcohol. 120 parts of a caustic soda binding agent, a suitable solvent being preferably solution of 40 B. are then added to the solution used, and the whole is heated to boiling for 15 minutes. 5

After cooling, the solution is neutralized by means of hydrochloric acid and the sodium chloride which separates is removed by filtering. The alcoholic filtrate is then concentrated by evaporation and the residue is made into a paste with acetone. The colorless body which is insoluble in acetone is filtered with suction and dried,'under reduced pressure. at ordinary temperature. This product is identical with that of Example 1.

(3) parts of piperidino-acetlc acid methyl ester are caused to run, while stirring, into a solution of 155 parts of octadecyl-chloromethyl ether in 200 parts of methylene chloride. When the reaction is complete, the solvent is evaporated under reduced pressure. The dry residue is then introduced into a solution of parts of crystallized sodium carbonate in 1000 parts of water, at a temperature of 65 C. After about half an hour's stirring, saponification has occurred and a feebly opal solution has been formed, from which separates, on cooling, a betaine of the following structure:

CHr-CH: CHr-O-CnHn c +CH|CO0- GET-C 1 (4) A mixture of 25 parts of dodec'yl chloro vent yields, with hot water, solutions having a good foaming action.

(5) 94 parts of alpha-piperidino-propionic acid ethyl ester are run, while stirring, into a hot solution of parts of octadecylchloromethyl ether in 200 parts of methylene chloride. The product obtained after evaporation of themethylene chloride is introduced, at a temperature of 60 C.,

into 1000 parts of a sodium carbonate solution of 5 per cent strength. After about half an hour's stirring, the product has become entirely saponified. The white product obtained after cooling is a betaine of the following structure:

(6) 30 parts of the chloromethyl ether of isooctylphenol-monoglycol ether dissolved in 250 parts of methylene chloride are caused to react with 16 parts of diethylamino-acetic acid ethyl ester. The solvent is-then distilled, under reduced pressure, at a temperature of 20 C. to 30 C., the residue is dissolved in. water having a tem'- perature of 50 C. and 15 parts of a caustic soda solution of 40 B. are added thereto. The whole is stirred, for 30 minutes, at this temperature, the saponification of the ester being then complete; the product is neutralized by means of dilute hydrochloric acid and concentrated to a paste by evaporating, under reduced pressure, at a temperature of 50 C.

(7) 47 parts of gamma-diethylamino-butyric acid ethyl ester are caused to run into a solution of 80 parts of octadecyl-chloromethyl ether in 100 sure and a mixture of 600 parts of water and parts of caustic soda solution of 38 B. is added to the residue obtained. The whole is then gradually heated to 70 C, and well stirred at this temperature for one hour. The solution is then rendered feebly alkaline to litmus by means of dilute hydrochloric acid and part of the water is removed by evaporation. A colorless paste is obtained which is readily soluble to a clear solution in hot water. (9) 148 parts of hexadecyl-chloromethyl ether heated to a temperature of 70 C. are mixed with 60 parts of dimethylamino-acetic acid methyl ester. On mixing the mass solidifies while iorming the quaternary ammonium salt, which is mixed with 300 parts of water and 80 parts of caustic soda solution of 38 B. and then worked up to a paste of hexadecyl-hydroxybetaine in the same manner as described in the preceding example.

(10) 147 parts of the chloromethyl ether of dodecyl-hydroxyethyl sulfide are caused to react with 60 parts of dimethylamino-acetic acid methyl ester in 500 parts of methylene chloride. After the solvent has been removed, the residue obtained is dissolved in 1200 parts of alcohol and thereupon 65 parts of caustic soda solution of 38 B. are added, while stirring, at a temperature of '70 C. The temperature is kept at 70 C. for further 20 minutes. After neutralizing with hydrochloric acid, the sodium chloride which hasseparated is filtered and the filtrate is concentrated by evaporation. The product thus obtained has the following structure:

CH;\ cm C izHmSCHaCH1.0.CH:IfCHaCOO- We claim:

1. The process which comprises causing a compound of the formula: R.X.CHz.Hai wherein R. stands for a member of the group consisting of hydrocarbon radicals of at least 4 carbon atoms and hydrocarbon radicals of at least 4 carbon atoms containing heteroatoms as members of their carbon structure, X stands for a member of the group consisting of O and S, Hal stands for a halogen atom, to react in the presence of an acid binding agent and in the presence of water with an aminocarboxylic acid containing a tertiary amino-group selected from the group consisting of alpha-amino carboxylic acids and gamma-aminocarboxylic acids.

wherein R stands bers of their carbon-structure, X stands for a member of the group consisting of O and S,

stands for the radical of a secondary amine of the group consisting of aliphatic and heterocyclic secondary amines, R3 stands for a member of the group consisting of hydrogen and aliphatic hydrocarbons, Y stands for a whole number of the group consisting of 1 and 3.

3. The products of the general formula:

for a saturated aliphatic byof at least 4 carbon atoms,

drocarbon radical stands for the radical of a secondary amine of the group consisting of aliphatic and heterocyclic secondary amines, Y stands for a whole number of the group consisting of 1 and 3.

4. The product of the formula:

/CH: CisH:1.0.CHa-I;ICHa

5. The product of the formula:

OKs-CH:

CiaH:1.0.CH:. CH1

CHz-CH:

om-coo- 6. The product of the formula:

LUDWIGV OR'I'HNER. GERHARD BALLE. JOHANN ROSENBACH. KURT BONSTEDT. 

